Huang Chengwei

Portfolio里面所有position的amount都没有正确更新为持仓数量

1

环境： * rqalpha==3.0.6 * rqalpha-mod-ctp==0.2.0 * python==3.4.5 现象： 1. 实盘中出现以下错误： ``` Traceback (most recent call last): File "TraderApi.pyx", line 841, in ctp._TraderApi.TraderSpi_OnRtnTrade (ctp/TraderApi.cpp:21981) File "/home/nsls/anaconda2/envs/rqalpha-env/lib/python3.4/site-packages/rqalpha_mod_ctp/ctp/api.py", line 297, in OnRtnTrade self.gateway.on_trade(trade_dict)...